Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Sau, J. D."'
We analyze the evidence of Majorana zero modes in nanowires that came from tunneling spectroscopy and other experiments, and scout the path to topologically protected states that are of interest for quantum computing. We illustrate the importance of
Externí odkaz:
http://arxiv.org/abs/1912.11094
Publikováno v:
Phys. Rev. Lett. 123, 055901 (2019)
Topological insulators with the time reversal symmetry broken exhibit strong magnetoelectric and magneto-optic effects. While these effects are well-understood in or near equilibrium, nonequilibrium physics is richer yet less explored. We consider a
Externí odkaz:
http://arxiv.org/abs/1811.06080
Publikováno v:
Phys. Rev. B 92, 155114 (2015)
The role of charge order in the phase diagram of high temperature cuprate superconductors has been recently re-emphasized by the experimental discovery of an incipient bi-directional charge density wave (CDW) phase in a class of underdoped cuprates.
Externí odkaz:
http://arxiv.org/abs/1502.03812
Publikováno v:
Phys. Rev. B 90, 241108(R) (2014)
We analyze the phase diagram associated with a pair of magnetic impurities trapped in a superconducting host. The natural interplay between Kondo screening, superconductivity and exchange interactions leads to a rich array of competing phases, whose
Externí odkaz:
http://arxiv.org/abs/1403.4611
Publikováno v:
Phys. Rev. B 86, 024504 (2012)
The excitation gap above the Majorana fermion (MF) modes at the ends of 1D topological superconducting (TS) semiconductor wires scales with the bulk quasiparticle gap E_{qp}. This gap, also called minigap, facilitates experimental detection of the pr
Externí odkaz:
http://arxiv.org/abs/1204.3637
Publikováno v:
Phys. Rev. B 85, 155302 (2012)
Quantum ground states on the non-trivial side of a topological quantum critical point (TQCP) have unique properties that make them attractive candidates for quantum information applications. A recent example is provided by s-wave superconductivity on
Externí odkaz:
http://arxiv.org/abs/1106.5506
Publikováno v:
Phys. Rev. Lett. 103, 087003 (2009)
Josephson tunnel junctions are widely used as nonlinear elements in superconducting circuits such as low noise amplifiers and quantum bits. However, microscopic defects in the oxide tunnel barrier can produce low and high frequency noise which can po
Externí odkaz:
http://arxiv.org/abs/0905.2217
Dynamical instabilities due to spin-mixing collisions in a $^{87}$Rb F=1 spinor Bose-Einstein condensate are used as an amplifier of quantum spin fluctuations. We demonstrate the spectrum of this amplifier to be tunable, in quantitative agreement wit
Externí odkaz:
http://arxiv.org/abs/0806.1553
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